tank still not cycled after 2 months? (Pros, cons, Signs & Solution)

tank still not cycled after 2 months

The tank still not cycled after 2 months. This is a common problem for new fish tanks and can be frustrating for the tank owner. In this blog, we will discuss the causes of this problem and offer some solutions.

What is a cycle tank?

A cycle fish tank is a system in which water is continuously cycled through a filtration system. This system helps keep the water clean and the fish healthy.

tank still not cycled after 2 months

There are a few things that can cause your tank to not cycle. First, make sure you’re using a good quality filter. Second, check your water chemistry and make sure everything is in balance. Third, make sure you are feeding your fish the right amount of food.

If you’re still having trouble cycling your tank, consider adding some aquarium plants. aquarium plants will help break down waste and keep your water clean.

Finally, make sure you are doing regular water changes. This will help remove some of the ammonia and waste from the water, and it will also give your beneficial bacteria a chance to grow.

Do you know Algae During Tank Cycling Saltwater

Types of Cycled tanks

There are three main types of cycling tanks: fishless, fish-in, and live rock. Each has its own unique set of pros and cons that you should consider before starting a new aquarium.


Cycling without fish is the fastest and safest way to cycle a new tank. This involves adding ammonia to the water to start the cycling process. Then after the cycle is complete you add the fish.


cycling is the traditional method of cycling a new tank. You put some hardy fish in the tank and let them swim while the ammonia and nitrates build up. This method is slower than cycling without fish, but some people find it more natural.

Live rock:

cycling is a new method that is gaining popularity. Live rock reefs are taken from the reef and placed in your tank. These rocks are home to beneficial bacteria that help circulate the tank. This method is slower than the other two, but it can add some interesting benefits to your aquarium.

Frequently ask question Fishless Cycle No Ammonia, High Nitrit

Best Signs that the tank is not cycled

There are a few important signs that your fish tank has not been properly cycled. If you notice any of the following symptoms, it’s time to take action to get your tank back on track:

  • Ammonia or nitrate levels are high.
  • The fish is gasping for air at the surface of the water.
  • Fish become sluggish and lose appetite.
  • Fish exhibiting strange behaviors, such as flashing or erratic swimming.
  • Fish show obvious signs of stress, such as increased mucus production or darkening of fins.
  • The fish are dying.
  • The water is cloudy.
  • The water smells.
  • The tank decoration is covered in algae.
  • Filter media is full.
  • Water is not being filtered properly.
  • The water temperature is erratic.
  • The pH is out of balance.
  • Nitrate levels are high.
  • Aquatic plants grow profusely.

If you notice any of these signs, it’s time to take action to get your tank back on track. Check the water quality, clean the filter, and check the temperature.

Solution to a tank that is not cycled

If you have a tank that won’t cycle, there are a few things you can try to fix the problem.

First, you can check the filter to see if it is clogged or dirty. If it is, clean or replaces it.

Next, you can check the tank for any algae growth. If algae are present, you can remove it by scrubbing the tank and walls.

Finally, you can check the water quality. If the water quality is poor, you can try to improve it by adding a water conditioner.

An important question for fish keepers Nitrite Spike During Cycl

Pros and cons of a tank that is not cycled

Pros and cons of a tank that is not cycled

There are a few pros and cons to having a tank that is not cycled.


  • You don’t have to worry about ammonia or nitrate levels.
  • No need for frequent water changes.
  • You can instantly add fish to your tank.
  • It is easier to maintain water quality in a small tank.
  • Your fish will be less stressed in a smaller tank.
  • You can control the temperature better in a smaller tank.
  • You can better control the light in a smaller tank.
  • You can better control filtration in a smaller tank.
  • You can add live plants to your tank without worrying about fish eating them.


  • Ammonia and nitrate levels may increase, which can be fatal to fish.
  • Uncycled tanks are often cloudy and dirty.
  • Fish in non-cycling tanks are often stressed and can get sick easily.
  • It can be very difficult to maintain proper water quality in an uncycled tank.
  • Uncirculated tanks can be a breeding ground for harmful bacteria and parasites.
  • Algae can take over a non-cycling tank very quickly.
  • Nitrate levels that are too high in non-cycling tanks often cause problems.

Aquarium won’t cycle been 3 months?

If your aquarium will not cycle after three months, there are a few possible reasons.

First, you may not have enough fish. A rule of thumb is one fish per 10 gallons (38 L), so a 20 gallon (76 L) aquarium should have at least two fish.

Second, you may not be feeding your fish enough.

Third, you may have too many plants. While plants are important to a healthy aquarium, they also compete with fish for nutrients. Fourth, your aquarium may have too much organic matter. It can be anything from uneaten food to fish waste.

Finally, you may not be doing enough water changes. Even if your aquarium is well stocked and you are feeding your fish enough food, you still need to do water changes to remove organic waste and keep the water quality high.

6 Months, 55 Gallon Tank Still Not Cycled?

If you’ve been monitoring the water quality in your 55-gallon tank and six months have gone by without significant improvement, don’t despair. It is still possible to cycle your tank and level the water quality. Here are some tips to help you:

Test your water regularly. This will help you monitor your progress and see if there are any areas that need improvement.
Be patient. The cycling process may take some time to complete, so don’t give up too soon.
Continue to care for yourself. This includes things like water changes, filter maintenance, and vacuuming the gravel.
Make sure you are using a quality filter. A good filter will help speed up the cycling process.
Consider using live plants. They can help absorb some of the extra nutrients in the water and improve water quality.

7 week tank still not cycling?

If you’ve had the tank for 7 weeks and it still isn’t cycling, there could be a few reasons. It could be that you are not feeding your fish enough, or that you are giving them too much food. It may also be that your filtration system is not suitable for the size of your tank.

It has been 4 weeks and Tank not cycling?

Don’t despair if you have a fish tank that isn’t cycling. There are a few steps you can do to try to restart it.

Step 1:

Make sure all your equipment is working properly. Check the filter to make sure it is clean and the pump is running.

Step 2:

Do a big water change. This will help remove the toxins that accumulate in the water.

Step 3:

Add some live plants to the tank. Plants help create a healthy environment for fish by producing oxygen and absorbing carbon dioxide.

If you follow these steps, your tank should start cycling in no time.


If you’ve had the tank still not cycled after 2 months, there are a few things you can check. First, make sure all your equipment is set up and working properly. This includes your filter, heater, and air system. If everything looks good there, the next step is to check your water quality. Ammonia and nitrite levels should be at zero, and nitrite levels should be less than 20ppm. If your level is still high, it is possible that your tank is not getting enough oxygen. This can be caused by overfeeding, overcrowding, or inadequate ventilation.